20405839 Dust Ejector | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Air Cleaner Dust Ejector Valve - Part Number: 20405839

Genuine Volvo Penta rubber dust ejector fitted to the lower cap of air cleaner 20405837 on the TD720GE. The one-way valve automatically releases accumulated dust and moisture from the dirty side of the air-cleaner housing while limiting unfiltered-air entry.

⚙️ Key Features

• Flexible one-way dust evacuation valve

• Fits air cleaner 20405837 and cap 20405829

• Used with filter insert 3840034 / earlier reference 20405830

• Helps prevent dust accumulation in the air-cleaner housing

• Valve lips must remain flexible and close together when not discharging debris

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 20405839 - current Volvo Penta dust-ejector reference

OEM / Related Numbers:

• 20405837 - air cleaner

• 3840034 - filter insert

• 20405830 - earlier related filter-insert reference

• 20405829 - air-cleaner cap

• 20405833 - mounting bracket

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta TD720GE air-cleaner assemblies

Typically suits:

• Engine / equipment models:

• TD720GE

• Engine Type: Volvo Penta 7-litre turbocharged industrial diesel

• Year / Serial Range: Stage 1 / Tier 1 air-cleaner arrangement dependent

🔌 Function

Purges dust and moisture from the dirty side of the air cleaner without requiring the housing to be opened.

Common signs of failure:

• Dust building up inside the air-cleaner cap

• Valve lips hardened, split or permanently open

• Unfiltered air entering through the ejector

• Water remaining trapped in the housing

• Air-filter restriction increasing prematurely

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging